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An Overview of the Amazonian Craton Evolution: Insights for Paleocontinental Reconstruction

International Journal of Geosciences 2015年第9期6卷 1060-1076页

作者： mauro cesar geraldes Armando Dias Tavares Anderson Costa Dos Santos Rio de Janeiro State University Maracana Rio de Janeiro Brazil

The Amazonian craton major accretionary and collisional processes may be correlated to supercontinent assemblies developed at several times in the Earth history. Based on geologic, structural and paleomagnetic evidence paleocontinent reconstructions have been proposed for Archean to younger times. The oldest continent (Ur) was formed probably by five Achaean cratonic areas (Kaapvaal, Western Dhawar, Bhandara, Singhhum and Pilbara cratons). Geologic evidences suggest the participation of the Archaean rocks of the Carajás region in the Ur landmass. Supercontinental 2.45 Ga Kenorland amalgamation is indicated by paleomagnetic data including Laurentia, Baltica, Australia, and Kalahari and Kaapvaal cratons. There is no evidence indicating that Amazonian craton was part of the Kenorland supercontinent. From 1.83 Ga to 1.25 Ga Columbia and Hudsonland supercontinents including Amazonian craton were proposed based on NE portion of the Amazonian craton (Maroni/Itacaiunas province) connection with West Africa and Kalahari cratons. Rodinia supercontinent reconstructions show Amazonia joined to Laurentia-Baltica as result of 1.1 Ga to 1.0 Ga fusion based on the Sunsas-Aguapei belts and Greenville and Sveconorwegian belts, respectivelly. The large Late Mesoproterozoic landmass included also Siberia, East Antartica, West Nile, Kalahari, Congo/Sao Francisco and Greenland. The 750 - 520 Ma Gondwana assembly includes most of the continental fragments rifted apart during the break-up of Rodinia followed by diachronic collisions (Araguaia, Paraguay and Tucavaca belts). The supercontinent Pangea is comprised of Gondwana and Laurentia formed at about 300 - 180 Ma ago. The Amazonian craton margins probably were not envolved in the collisional processes during Pangea because it was embebed in Neoproterozoic materials. As consequence, Amazonian craton borders have no record of the orogenic processes responsible for the Pangea amalgamation.

关键词： Amazonian Craton Tectonic Evolution Paleocontinents

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Characterization of Arroyo Verde Epithermal Deposit:Paragenesis,Mineral Geochemistry,Geochronology and Fluid Inclusions in Lower Chon Aike Volcanism,Argentina

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Journal of Earth Science 2024年第1期35卷 62-84页

作者： Cecilia Pavón Pivetta Leonardo Benedini Paulo Marcos Ma.Agustina Cócola Mercedes Virginia Barros Daniel Gregori Leonardo Strazzere Anderson Costa dos Santos mauro C.geraldes Instituto Geologico del Sur(INGEOSUR) Universidad Nacional del Sur(UNS)-Consejo Nacional de Investigaciones Cientificas y Tecnicas(CONICET)Bahia Blanca 8000Argentina Dpto.de Geologia Universidad Nacional del Sur(UNS)Bahia Blanca 8000Argentina Universidad Nacional de Rio Negro Instituto de Investigacion en Paleobiologia y GeologiaGeneral Roca 8332Argentina Universidade do Estado do Rio de Janeiro Faculdade de GeologiaDepartamento de Mineralogia e Petrologia igneaRiodeJaneiro20559-900Brazil Geobiotec Departamento de GeocienciasUniversidade de AveiroAveiro 3800-002Portuga

Arroyo Verde epithermal deposit,in the North Patagonia region of Argentina,is located within the Lower Chon Aike volcanism and is developed between 192.6±2.5 Ma(mineralization host rock)and 189.5±2.6 Ma(overlying lava).Marifil volcanic complex is the host rock for these veins,veinlets and *** particular small deposit has developed low to intermediate sulphidation characteristics,with gangue mineral textures associated with several ore *** probe microanalysis determines electrum,silver minerals such as acanthite,and tetrahedrite,related Ag-Cu minerals like jalpaite,mckinstryite,stromeyerite,and base metals like chalcopyrite,sphalerite,galena and *** inclusions in quartz of two out of five events indicate that these Low Jurassic veins were formed due to subtle boiling and dilution mechanisms and by low-salinity(3.4 wt.%to 6.7 wt.%NaCl Eq)magmatic-hydrothermal fluid at 225 to 310℃.The fluid inclusion measurements that indicate boiling(Event 3)were plotted,and based on this data,we interpret that the Arroyo Verde deposit has been eroded between 550 and 700 *** particular character has not been previously recorded for other sectors of the eastern north Patagonian region.

关键词： epithermal deposit Ag minerals mineral geochemistry fluid inclusions Chon Aike geochronology

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The Colider and Roosevelt olcanic rocks (sw amazonian craton): geochemistry and sm-nd isotope characteristics of a silicic large igneous province

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Acta Geochimica 2021年第6期40卷 1023-1049页

作者： Bruna Saar de Almeida mauro César geraldes Carlos Augusto Sommer Felipe Corrales Antonio Joāo Paes de Barros Universidade do Estado do Rio de Janeiro Rio de JaneiroBrazil University of Geneva GenevaSwitzerland Universidade Federal do Rio Grande do Sul Rio Grande do SulBrazil METAMAT(Mato Grosso State Geological Survey) CuiabaBrazil

The volcanic rocks of the Colíder and Roosevelt formations are extensively exposed in the south-central portion of the Amazonian Craton where effusive and pyroclastic rocks have been *** units,topped by chemical sediments and oceanic facies as rhyolite and andesite lavas,rhyodacite,and porphyritic dacite,with frequent intercalations of pyroclastic and epiclastic ***-rock geochemistry for 55 samples of rhyolitic to andesitic composition suggests the involvement of fertile mantle-derived components with E-MORB to OIB *** analyzed rocks display calc-alkaline to shoshonitic affinity consistent with generation related to an active continental *** whole-rock Sm-Nd isotope data from selected felsic volcanic rocks of the Colíder and Roosevelt formations yield negative initial eNd values between–3 and–9,indicating the predominantly crustal nature of the parental magmas with early Archean to late Paleoproterozoic(ca.2.5–2.0 Ga)depleted mantle model ages.

关键词： Amazonian craton Geochemistry Sm-Nd isotopes Paleoproterozoic Volcanism

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The Puesto Piris Formation: Evidence of basin-development in the North Patagonian Massif during crustal extension associated with Gondwana breakup

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Geoscience Frontiers 2019年第1期10卷 299-314页

作者： Leonardo Strazzere Daniel A.Gregori Leonardo Benedini Paulo Marcos Mercedes V.Barros mauro C.geraldes Cecilia Pavon Pivetta Instituto Geológico del Sur Consejo Nacional de Investigaciones Científicas y Técnicas Av Cátedra de Geología Minera Universidad Nacional del Sur Cátedra de Geología Argentina Universidad Nacional del Sur Av Cátedra de Geofísica Departamento de Geología Universidad Nacional del Sur Av Departamento de Geología Regional Facultad de Geología Universidad Estatal de Rio de Janeiro

The Marifil Volcanic Complex, exposed in the eastern North Patagonian Massif, Argentina, includes up to 550 m of red conglomerates, sandstones, black siltstones, limestones, and reworked tuff of the Puesto Piris Formation. The basal part of this unit, which was deposited in high-gradient topographic relief, is composed of conglomerates and sandstones with thin layers of reworked tuffs. The lithofacies associations of the basal part indicate that the depositional mechanisms were mantled and gravitational *** middle part of the unit consists of fine sandstones, limestones, and black siltstones that were deposited in low-energy fluvial and lacustrine environments. The outcrops are located along the NEe SW direction and the major thickest units represented by limestones and siltstones, occur near the southeastern border of this NEeS W depocenter. Since the rhyolitic and trachytic lava flows and tuffs of the Marifil Volcanic Complex are interbedded with the sedimentary sequences of the Puesto Piris Formation,both units are coeval. Zircon Ue Pb age was obtained for a trachytic lava flow(193.4 ±3.1 Ma) suggesting that sedimentation and volcanism are Sinemurian. This extensional episode was recorded in the eastern,western, and southwestern sectors of the North Patagonian Massif, and is possibly associated with the Gondwana supercontinent breakup.

关键词： Puesto Piris Formation Early Jurassic North Patagonian Massif

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Antifeedant Activity of Caesalpinia coriaria Essential Oil Against Incisitermes marginipennis (Latreille)

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Phyton-International Journal of Experimental Botany 2021年第3期90卷 907-920页

作者： cesar B.Ramírez-López Rita Beltrán-Sánchez Alistair Hernández-Izquierdo JoséLuis Salvador-Hernández Eduardo Salcedo-Pérez Rosa E.del Río mauro M.Martínez Pacheco Instituto de Investigaciones Químico Biológicas Universidad Michoacana de San Nicolás de HidalgoMorelia58030Mexico Departamento de Botánica y Zoología CUCBA Universidad de GuadalajaraNextipac45200Mexico

This study scrutinized the possibility of finding toxicant or deterrent plant metabolites against the dry wood termite Incisitermes marginipennis(Latreille).Plant deterrent agents act as repellents or antifeedants to prevent wood decay and increase its useful *** potential of the tree Caesalpinia coriaria(Fabaceae)as a biological source of molecules with deterrent effects against the dry wood termite was assessed by a phytochemical fractionation guided by repellence and antifeedant *** gas chromatography-mass spectrometry analysis of the leaf essential oil showed geraniol to be one of the major components and its repellent and antifeedant effects were *** had only an antifeedant effect without affecting the body weight or survival of the dry wood *** the leaf essential oil,geraniol did not exhibit a repellency *** in-silico approach of the activity of acetylcholinesterase in interaction with geraniol resulted in an affinity energy of−7.5 Kcal/*** interacted with the amino acid tyrosine 324 located in the enzyme’s active site while citronellol(negative control)interacted with tryptophan 83 located adjacent to the active *** deterring terpenes have not been implemented for the preservation and restoration of wood products exposed to the attack of the dry wood ***,they are an important natural control alternative.

关键词： Termite geraniol repellent antifeedant deterrent

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Single Incision Laparoscopic Surgery Development at the Hospital Clinic: Our 4-Year Experience

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International Journal of Clinical Medicine 2015年第1期6卷 26-32页

作者： Josep Martí Oscar Vidal mauro Valentini cesar Ginestà Juan José Espert Miss Yolanda Rodriguez Guerson Benarroch Juan Carlos García-Valdecasas General Surgery and Emergency Unit Department of General and Digestive Surgery Digestive Diseases and Metabolism Institute Hospital Clínici Provincial Universitat de Barcelona IDIBAPS Barcelona Spain

Background: Single incision laparoscopic surgery (SILS) has still not replaced conventional laparoscopic surgery in many centers because of its special instruments requirements and training needs. In our Institution we introduced SILS procedures in a procedural stepwise manner, with progression to more difficult procedures only allowed if complete proficiency in low-complexity ones is achieved. Methods: We studied the evolution of performed SILS procedures in our Institution from the beginning of the program (mainly appendectomies, cholecystectomies, left adrenalectomies) and the results from these techniques. Results: Among 328 SILS procedures there were 148 appendectomies (24 by suprapubic access), 141 cholecystectomies, 32 left adrenalectomies, 6 diagnostic laparoscopies and 1 resection of Meckel’s diverticulum. The majority of appendectomies accounted for non-perforated appendicitis cases and there were no significant differences between transumbilical and suprapubic access groups. In cholecystectomies the majority of patients were elective cases and oral intake could be resumed within the 6 postoperative hours. In left adrenalectomies no conversion to open surgery was required and there were no intraoperative or postoperative complications. Conclusions: Procedural stepwise approach in SILS is a valid, feasible and safe option that can be applied at any institution starting a SILS program.

关键词： Adrenal Appendix Cholecystectomy Training/Courses Education

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巴西Pontes e Lacerda地区中元古代脉状金矿床

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贵金属地质 1999年第1期8卷 53-55页

作者： mauro C. geraldes Bernardino R. Figueiredo Colombo C. G.Tassinari Hans D. Ebert 杨福新核工业西北地质局203研究所

ＰｏｎｔｅｓｅＬａｃｅｒｄａ地区位于亚马孙克拉通西南部Ｇｕａｐｏｒｅ河和Ｊａｕｒｕ河流域，已经发现２０多处金矿床．区中出露的岩石有：基底片麻岩和变粒岩，Ｒｏｎｄｏ－ｎｉａｎｏ活动带花岗岩以及沿着该克拉通最新增生事件的... 详细信息

ＰｏｎｔｅｓｅＬａｃｅｒｄａ地区位于亚马孙克拉通西南部Ｇｕａｐｏｒｅ河和Ｊａｕｒｕ河流域，已经发现２０多处金矿床．区中出露的岩石有：基底片麻岩和变粒岩，Ｒｏｎｄｏ－ｎｉａｎｏ活动带花岗岩以及沿着该克拉通最新增生事件的Ｓｕｎｓａｓ－Ａｇｕａｐｅｉ活动带...

关键词：金矿床脉状金矿热液蚀变矿床地质中元古代

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Clinical Assessment of Treatment Outcomes Following Borago officinalis Extract Therapy in Patients Presenting with Cyclical Mastalgia

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International Journal of Clinical Medicine 2015年第6期6卷 363-371页

作者： Carlos Romualdo Barboza Gama Ricardo Lasmar Gustavo Falcao Gama Lisa Oliveira Erika cesar de Oliveira Naliato Marcia Goncalves Ribeiro Flavia de Paoli Adenilson de Souza da Fonseca Camila Sirieiro Abreu mauro Geller Alessandra Santos Teresopolis Medical School—UNIFESO Rio de JaneiroBrazil Universidade Federal Fluminense—UFF Rio de JaneiroBrazil Universidade Federal de Juiz de Fora—UFJF Juiz de ForaBrazil Universidade Federal do Rio de Janeiro—UFRJ Rio de JaneiroBrazil Instituto de Pós-Graduacao Medica Carlos Chagas Rio de JaneiroBrazil

In order to evaluate the safety and efficacy of Borago officinalis (900 mg borage oil capsules) in the treatment of patients presenting with cyclic mastalgia, 91 subjects were included in the study. Efficacy assessments were performed based on data obtained prior to the start of treatment (Pretreatment), and after each menstrual cycle (Assessment 2—following 45 days of treatment;and Assessment 3—at the end of the 90-day treatment period). Primary efficacy measures considered the results of the Mastalgia Questionnaire, including a 100 mm visual analog pain scale assessing mean, most intense mastalgia severity, and impact on work, sleep, and sexual activity. Safety and tolerability measures included any changes in vital signs and physical exam in relation to pretreatment, any changes in clinical laboratory exams in relation to pretreatment, and the occurrence of adverse events after the first dose of study medication. The VAS scores of the mean mastalgia and most severe mastalgia both showed statistically significant

关键词： Cyclic Mastalgia Borago officinalis Borage Oil

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Management of Complex Wounds with Dermal Substitute Assisted by a Negative Pressure System

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Modern Plastic Surgery 2023年第4期13卷 95-105页

作者： Cuahutémoc Márquez Espriella Ruiz Garza Jorge Gerardo Barbosa Villarreal Fernando Dávila Díaz Rodrigo Cuervo Vergara Marco Antonio Campollo López Ana Priscila Gutierrez Alvarez Mauricio Chama Naranjo Alfredo García Corral Jesús Ricardo Pérez Benítez Omar Alberto Pulido López Ricardo Alberto Jaimes Duran Edwing Michel Garibaldi Bernot mauro Cortes Aguilar Carlos Manuel García Córdova Carlos Emiliano Camacho Rodriguez Hayah Camacho Rodriguez Hayah Martinez Villalobos Claudia Nallely Ochoa Contreras Erick cesar Randall Cruz Soto Herrera Lozano Luis Arturo Department of Plastic and Reconstructive Surgery Hospital Central Sur Petróleos Mexicanos Mexico City Mexico

Introduction: The standard treatment for complex wound care is autografting. The advent of dermal substitutes has provided a novel tool for the preparation of the bed to be grafted. However, most types of dermal matrices require the application of a skin graft a second time. Currently, other strategies have been developed to improve the vascularization process, such as negative pressure wound therapy (NPWT), which has been reported to reduce the time required for vascular growth and dermal matrix integration and thus achieve a shorter waiting period for autologous graft application. The present study aims to evaluate the effectiveness and safety of dermal matrix management associated with NPWT in the treatment of complex wounds. Methods: Seven patients with a diagnosis of complex wounds were enrolled in this study between July 1, 2015, and June 31, 2016. After debridement and having an adequate wound bed, patients who met the criteria for the application of combined therapy were treated with dermal substitutes and a negative pressure system. The percentage of graft integration into the wound bed, complications, length of hospital stay, and duration of therapy were analyzed. Results: The mean age was 42.5 ± 16 (39 - 54) years old;three women and four men were included in the study. The approximate size of skin loss was 120.7 ± 75 cm2 (25 - 250 cm2). The combined therapy of dermal matrix plus NPWT was instituted in all cases for a period of 14 days. There were no complications, with 100% graft integration in 6 of 7 cases. Patients were discharged after a mean hospital stay of 5.4 days. Conclusions: This study demonstrates that the utilization of combined dermal matrix plus NPWT therapy can be performed safely and effectively in patients with complex wounds with low complication rates and a short hospital stay.

关键词： Negative Pressure Wound Therapy Complex Wound Dermal Matrix Wound Therapy

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Public Use and Landscape Analysis in the Serra da Canastra National Park, Brazil: A Geospatial Approach

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Natural Resources 2016年第2期7卷 93-101页

作者： Marcos Cicarini Hott Luiz Otávio Moras Filho Marco Aurélio Leite Fontes Aline Aparecida Silva Pereira Cláudia de Oliveira Gonçalves Nogueira Luis Marcelo Tavares de Carvalho Luís Antônio Coimbra Borges João cesar de Resende mauro Antonio Homem Antunes Department of Forest Sciences Federal University of Lavras Lavras Brazil Brazilian Agricultural Research Corporation—Embrapa Juiz de Fora Brazil Department of Engineering Federal Rural University of Rio de Janeiro Seropédica Brazil

The Conservation Units (CU) were created to protect natural environments from growing degradation and to impede the expansion of urbanization and agricultural crops. The Serra da Canastra National Park, established to protect the headwaters of the S?o Francisco River and other places of scenic and ecological interest, is extensively visited due to its many tourist attractions, such as waterfalls, fauna and flora. An analysis of the park’s geography is needed to assess the risk involved in and its suitability for public use due to its territorial extension and environmental complexities. Thus, this study aimed to investigate the background of issues of interest to CU management. Additionally, we used high-resolution RapidEye imagery, altimetry and database of park infrastructure to build geospatial database and estimate classes of suitability for and risk in public use through GIS tools. The resulting cartographic data can support the planning of policies concerning the landscape and park’s territorial management.

关键词： Conservation Units Environment GIS RapidEye Imagery

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